Planted 1,200 Norway Spruce plugs in early April. I have had great success with plugs in the past and they always do very well. One field that we are transforming into a bedding area had several hundred plugs planted this year. Well to say they had a rough summer due to lack of rain would be an understatement. This field is also totally open and the trees had minimal protection from the sun. Many of my plugs in this field have a yellow color to them. Are they toast or just a little sick heading into winter? The rest of the plugs are a dark green, just like I am used to. These yellowish trees have me a bit concerned.